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Ahmadieh-Yazdi A, Karimi M, Afkhami E, Hajizadeh-Tafti F, Kuchakzadeh F, Yang P, Sheykhhasan M. Unveiling therapeutic potential: Adipose tissue-derived mesenchymal stem cells and their exosomes in the management of diabetes mellitus, wound healing, and chronic ulcers. Biochem Pharmacol 2024; 226:116399. [PMID: 38944396 DOI: 10.1016/j.bcp.2024.116399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/30/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
Diabetes mellitus (DM) is a pervasive global health issue with substantial morbidity and mortality, often resulting in secondary complications, including diabetic wounds (DWs). These wounds, arising from hyperglycemia, diabetic neuropathy, anemia, and ischemia, afflict approximately 15% of diabetic patients, with a considerable 25% at risk of lower limb amputations. The conventional approaches for chronic and diabetic wounds management involves utilizing various therapeutic substances and techniques, encompassing growth factors, skin substitutes and wound dressings. In parallel, emerging cell therapy approaches, notably involving adipose tissue-derived mesenchymal stem cells (ADMSCs), have demonstrated significant promise in addressing diabetes mellitus and its complications. ADMSCs play a pivotal role in wound repair, and their derived exosomes have garnered attention for their therapeutic potential. This review aimed to unravel the potential mechanisms and provide an updated overview of the role of ADMSCs and their exosomes in diabetes mellitus and its associated complications, with a specific focus on wound healing.
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Affiliation(s)
- Amirhossein Ahmadieh-Yazdi
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mahdieh Karimi
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Elham Afkhami
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran; Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Fatemeh Hajizadeh-Tafti
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Kuchakzadeh
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran; Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Piao Yang
- Department of Molecular Genetics, College of Arts and Sciences, The Ohio State University, Columbus, OH 43210, USA
| | - Mohsen Sheykhhasan
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran.
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Tang L, Cai S, Lu X, Wu D, Zhang Y, Li X, Qin X, Guo J, Zhang X, Liu C. Platelet-Derived Growth Factor Nanocapsules with Tunable Controlled Release for Chronic Wound Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310743. [PMID: 38263812 DOI: 10.1002/smll.202310743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/11/2024] [Indexed: 01/25/2024]
Abstract
Chronic wounds have emerged as an increasingly critical clinical challenge over the past few decades, due to their increasing incidence and socioeconomic burdens. Platelet-derived growth factor (PDGF) plays a pivotal role in regulating processes such as fibroblast migration, proliferation, and vascular formation during the wound healing process. The delivery of PDGF offers great potential for expediting the healing of chronic wounds. However, the clinical effectiveness of PDGF in chronic wound healing is significantly hampered by its inability to maintain a stable concentration at the wound site over an extended period. In this study, a controlled PDGF delivery system based on nanocapsules is proposed. In this system, PDGF is encapsulated within a degradable polymer shell. The release rate of PDGF from these nanocapsules can be precisely adjusted by controlling the ratios of two crosslinkers with different degradation rates within the shells. As demonstrated in a diabetic wound model, improved therapeutic outcomes with PDGF nanocapsules (nPDGF) treatment are observed. This research introduces a novel PDGF delivery platform that holds promise for enhancing the effectiveness of chronic wound healing.
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Affiliation(s)
- Lin Tang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Susu Cai
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xing Lu
- Beijing Institute of Biotechnology, Beijing, 100071, P. R. China
| | - Dingqi Wu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yahan Zhang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiaoming Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiaoyan Qin
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jimin Guo
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiaopeng Zhang
- Beijing Institute of Biotechnology, Beijing, 100071, P. R. China
| | - Chaoyong Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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Yadav JP, Singh AK, Grishina M, Pathak P, Verma A, Kumar V, Kumar P, Patel DK. Insights into the mechanisms of diabetic wounds: pathophysiology, molecular targets, and treatment strategies through conventional and alternative therapies. Inflammopharmacology 2024; 32:149-228. [PMID: 38212535 DOI: 10.1007/s10787-023-01407-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/27/2023] [Indexed: 01/13/2024]
Abstract
Diabetes mellitus is a prevalent cause of mortality worldwide and can lead to several secondary issues, including DWs, which are caused by hyperglycemia, diabetic neuropathy, anemia, and ischemia. Roughly 15% of diabetic patient's experience complications related to DWs, with 25% at risk of lower limb amputations. A conventional management protocol is currently used for treating diabetic foot syndrome, which involves therapy using various substances, such as bFGF, pDGF, VEGF, EGF, IGF-I, TGF-β, skin substitutes, cytokine stimulators, cytokine inhibitors, MMPs inhibitors, gene and stem cell therapies, ECM, and angiogenesis stimulators. The protocol also includes wound cleaning, laser therapy, antibiotics, skin substitutes, HOTC therapy, and removing dead tissue. It has been observed that treatment with numerous plants and their active constituents, including Globularia Arabica, Rhus coriaria L., Neolamarckia cadamba, Olea europaea, Salvia kronenburgii, Moringa oleifera, Syzygium aromaticum, Combretum molle, and Myrtus communis, has been found to promote wound healing, reduce inflammation, stimulate angiogenesis, and cytokines production, increase growth factors production, promote keratinocyte production, and encourage fibroblast proliferation. These therapies may also reduce the need for amputations. However, there is still limited information on how to prevent and manage DWs, and further research is needed to fully understand the role of alternative treatments in managing complications of DWs. The conventional management protocol for treating diabetic foot syndrome can be expensive and may cause adverse side effects. Alternative therapies, such as medicinal plants and green synthesis of nano-formulations, may provide efficient and affordable treatments for DWs.
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Affiliation(s)
- Jagat Pal Yadav
- Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, India.
- Pharmacology Research Laboratory, Faculty of Pharmaceutical Sciences, Rama University, Kanpur, 209217, India.
- Bioorganic and Medicinal Chemistry Research Laboratory, Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, India.
| | - Ankit Kumar Singh
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, 151401, India
| | - Maria Grishina
- Laboratory of Computational Modeling of Drugs, Higher Medical and Biological School, South Ural State University, Chelyabinsk, 454008, Russia
| | - Prateek Pathak
- Department of Pharmaceutical Analysis, Quality Assurance, and Pharmaceutical Chemistry, School of Pharmacy, GITAM (Deemed to Be University), Hyderabad, 502329, India
| | - Amita Verma
- Bioorganic and Medicinal Chemistry Research Laboratory, Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, India
| | - Vikas Kumar
- Natural Product Drug Discovery Laboratory, Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, India
| | - Pradeep Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, 151401, India
| | - Dinesh Kumar Patel
- Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, India.
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Cai F, Chen W, Zhao R, Liu Y. The capacity of exosomes derived from adipose-derived stem cells to enhance wound healing in diabetes. Front Pharmacol 2023; 14:1063458. [PMID: 37808198 PMCID: PMC10551633 DOI: 10.3389/fphar.2023.1063458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 09/05/2023] [Indexed: 10/10/2023] Open
Abstract
The slow healing and nonhealing of diabetic wounds have long posed challenges for clinical practitioners. In the presence of elevated glucose levels, the body's regulatory mechanisms undergo alterations that impede normal wound healing processes, including cell proliferation, cytokine release, and growth factor activity. Consequently, the advancement of stem cell technology has sparked growing interest in utilizing stem cells and their derivatives as potential therapeutic agents to enhance diabetic wound healing. This paper aims to provide an academic review of the therapeutic effects of adipose-derived stem cell-EXOs (ADSC-EXOs) in diabetic wound healing. As a cell-free therapy, exosomes (EXOs) possess a multitude of proteins and growth factors that have been shown to be advantageous in promoting wound healing and mitigating the potential risks associated with stem cell therapy. By examining the current knowledge on ADSC-EXOs, this review seeks to offer insights and guidance for the potential application of EXOs in the treatment of diabetic wounds.
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Affiliation(s)
| | | | | | - Yi Liu
- Department of Burns and Plastic Surgery, and Wound Repair Surgery, The Lanzhou University Second Hospital, Lanzhou, Gansu, China
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UZUN E, BALABANLI DDB, CEVHER ŞC. Vascular Endothelial Growth Factor Supplementation Enhance Skin Antioxidant Capacity in Hyperglycemic Rats. GAZI UNIVERSITY JOURNAL OF SCIENCE 2023. [DOI: 10.35378/gujs.1082697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The fundamental reasons for delayed wound healing in diabetic animals include inadequate production of growth factors or their increased devastation. Vascular Growth Factor (VEGF) has a biological role in the healing process of mucosal and skin wounds, especially in the process of new vessel formation. We planned to examine the oxidant-antioxidant events that occur during healing with topical VEGF application in diabetic rats. Experiments were performed 36 adults female Wistar albino rat diabetes induced by streptozotocin. The incisional wounds were made on the dorsal region in the rats. Rats were separated to 3 groups: the untreated (negative control) group (n=12), the chitosan group (n=12), the chitosan + VEGF group (n=12). The treatments were continued for 3 and 7 days, excluding the control and negative control groups. Then, the animals were sacrificed on the 3rd and 7th days of wound healing. Antioxidant and oxidant parameters in skin tissue were measured using biochemical methods. Topical VEGF application was decreased the NOx levels on the 3rd day compared to other groups. Moreover, it increased wound tissue GSH and AA levels, subsequently contributing to the enhance tissue antioxidant capacity. In conclusion, VEGF application increases the antioxidant capacity of the tissue and simultaneously reduces the oxidative stress and thus gives a positive acceleration to the wound healing process.
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Cao Z, Liu Y, Wang Y, Leng P. Research progress on the role of PDGF/PDGFR in type 2 diabetes. Biomed Pharmacother 2023; 164:114983. [PMID: 37290188 DOI: 10.1016/j.biopha.2023.114983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/10/2023] Open
Abstract
Platelet-derived growth factors (PDGFs) are basic proteins stored in the α granules of platelets. PDGFs and their receptors (PDGFRs) are widely expressed in platelets, fibroblasts, vascular endothelial cells, platelets, pericytes, smooth muscle cells and tumor cells. The activation of PDGFR plays a number of critical roles in physiological functions and diseases, including normal embryonic development, cellular differentiation, and responses to tissue damage. In recent years, emerging experimental evidence has shown that activation of the PDGF/PDGFR pathway is involved in the development of diabetes and its complications, such as atherosclerosis, diabetic foot ulcers, diabetic nephropathy, and retinopathy. Research on targeting PDGF/PDGFR as a treatment has also made great progress. In this mini-review, we summarized the role of PDGF in diabetes, as well as the research progress on targeted diabetes therapy, which provides a new strategy for the treatment of type 2 diabetes.
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Affiliation(s)
- Zhanqi Cao
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Yijie Liu
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Yini Wang
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Ping Leng
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China.
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Kaltalioglu K. Sinapic acid-loaded gel accelerates diabetic wound healing process by promoting re-epithelialization and attenuating oxidative stress in rats. Biomed Pharmacother 2023; 163:114788. [PMID: 37105076 DOI: 10.1016/j.biopha.2023.114788] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 04/29/2023] Open
Abstract
Impaired wound healing is a critical health concern for individuals with diabetes. Sinapic acid, a phyto-compound, has wound-healing potential owing to its various bioactivities. In this study, we explored the wound-healing ability of sinapic acid in diabetes. Full-thickness excisional wounds were created in streptozotocin-induced diabetic rats. Sinapic acid-loaded gels (1%, 2%, and 3%) were prepared and applied topically to diabetic skin wounds. On day 7 post-wounding, rats were sacrificed, and macroscopic, histopathological, and oxidative markers of wound healing activity were evaluated in the collected wound tissues. Sinapic acid-loaded gels showed better recovery in re-epithelialization (p < 0.05) and angiogenesis (p < 0.05) compared to the negative control group. Sinapic acid-loaded gels (1%, 2%, and 3%) showed 87.46%, 79.53%, and 68.78% wound contraction, respectively. They increased collagen content (28.05 ± 1.66, 17.30 ± 2.19, and 11.64 ± 1.25, respectively) and decreased malondialdehyde (MDA) levels (17.49 ± 1.61, 18.44 ± 1.24, and 19.16 ± 1.77, respectively) compared to the negative control group (6.76 ± 0.89, and 43.58 ± 3.70, respectively) (p < 0.05). Moreover, sinapic acid-loaded gel groups demonstrated enhanced antioxidant capacity (approximately 2-2.5-fold) compared to the negative control group (p < 0.05). Sinapic acid 1% loaded gel showed the best effect on the diabetic healing process, whereas sinapic acid 2% loaded gel and reference drug showed similar effects. The results of this study, for the first time, suggest that the topical application of sinapic acid can promote diabetic wound healing, especially at low doses.
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Affiliation(s)
- Kaan Kaltalioglu
- Espiye Vocational School, Giresun University, 28600 Giresun, Turkey.
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Zheng SY, Wan XX, Kambey PA, Luo Y, Hu XM, Liu YF, Shan JQ, Chen YW, Xiong K. Therapeutic role of growth factors in treating diabetic wound. World J Diabetes 2023; 14:364-395. [PMID: 37122434 PMCID: PMC10130901 DOI: 10.4239/wjd.v14.i4.364] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/16/2023] [Accepted: 03/21/2023] [Indexed: 04/12/2023] Open
Abstract
Wounds in diabetic patients, especially diabetic foot ulcers, are more difficult to heal compared with normal wounds and can easily deteriorate, leading to amputation. Common treatments cannot heal diabetic wounds or control their many complications. Growth factors are found to play important roles in regulating complex diabetic wound healing. Different growth factors such as transforming growth factor beta 1, insulin-like growth factor, and vascular endothelial growth factor play different roles in diabetic wound healing. This implies that a therapeutic modality modulating different growth factors to suit wound healing can significantly improve the treatment of diabetic wounds. Further, some current treatments have been shown to promote the healing of diabetic wounds by modulating specific growth factors. The purpose of this study was to discuss the role played by each growth factor in therapeutic approaches so as to stimulate further therapeutic thinking.
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Affiliation(s)
- Shen-Yuan Zheng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan Province, China
| | - Xin-Xing Wan
- Department of Endocrinology, Third Xiangya Hospital, Central South University, Changsha 410013, Hunan Province, China
| | - Piniel Alphayo Kambey
- Department of Neurobiology and Anatomy, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Yan Luo
- Clinical Medicine Eight-Year Program, Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
| | - Xi-Min Hu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan Province, China
| | - Yi-Fan Liu
- Clinical Medicine Eight-Year Program, Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
| | - Jia-Qi Shan
- Clinical Medicine Eight-Year Program, Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
| | - Yu-Wei Chen
- Clinical Medicine Eight-Year Program, Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan Province, China
- Key Laboratory of Emergency and Trauma, College of Emergency and Trauma, Hainan Medical University, Haikou 571199, Hainan Province, China
- Hunan Key Laboratory of Ophthalmology, Central South University, Changsha 410013, Hunan Province, China
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Don TM, Ma CH, Huang YC. In Situ Release of Ulvan from Crosslinked Ulvan/Chitosan Complex Films and Their Evaluation as Wound Dressings. Polymers (Basel) 2022; 14:polym14245382. [PMID: 36559749 PMCID: PMC9786826 DOI: 10.3390/polym14245382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/30/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
When a wound forms due to any injuries, it should be covered with a functional wound dressing for accelerating wound healing and reducing infection. In this study, crosslinked ulvan/chitosan complex films were prepared with or without the addition of glycerol and chlorophyll, and their wound healing properties were evaluated for potential application in wound dressing. The results showed that the tensile strength and elongation at break of the prepared ulvan/chitosan complex films were 2.23-2.48 MPa and 83.8-108.5%, respectively. Moreover, their water vapor transmission rates (WVTRs) were in the range of 1791-2029 g/m2-day, providing suitable environment for wound healing. Particularly, these complex films could release ulvan in situ in a short time, and the film with chlorophyll added had the highest release rate, reaching 62.8% after 20 min of releasing. In vitro studies showed that they were biocompatible toward NIH 3T3 and HaCaT cells, and promoted the migration of NIH 3T3 cells. These complex films could protect HaCaT cells from oxidative damage and reduce the production of reactive oxygen species (ROS); the addition of chlorophyll also effectively reduced the inflammatory response induced by LPS as found in the reduction in both NO and IL-6. Animal models showed that the complex films added with glycerol and chlorophyll could promote wound healing in the early stage, while accelerating the regeneration of dermal glands and collagen production. Briefly, these ulvan/chitosan complex films had good physiochemical properties and biological activity, and could accelerate wound healing both in vitro and in vivo.
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Affiliation(s)
- Trong-Ming Don
- Department of Chemical and Materials Engineering, Tamkang University, No. 151 Yingzhuan Rd., New Taipei City 251301, Taiwan
- Correspondence: (T.-M.D.); (Y.-C.H.)
| | - Chen-Han Ma
- Department of Food Science, National Taiwan Ocean University, No. 2 Beining Rd., Keelung City 20224, Taiwan
| | - Yi-Cheng Huang
- Department of Food Science, National Taiwan Ocean University, No. 2 Beining Rd., Keelung City 20224, Taiwan
- Correspondence: (T.-M.D.); (Y.-C.H.)
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Erarslan S, Coskun-Cevher S. The Effects of FGF2 Application on Oxidative Status of Wound Tissue in Normo- and Hyperglycemic Rats: A Time-Based Study. BIOL BULL+ 2022. [DOI: 10.1134/s1062359022140059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Chakraborty R, Borah P, Dutta PP, Sen S. Evolving spectrum of diabetic wound: Mechanistic insights and therapeutic targets. World J Diabetes 2022; 13:696-716. [PMID: 36188143 PMCID: PMC9521443 DOI: 10.4239/wjd.v13.i9.696] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/12/2022] [Accepted: 08/18/2022] [Indexed: 02/05/2023] Open
Abstract
Diabetes mellitus is a chronic metabolic disorder resulting in an increased blood glucose level and prolonged hyperglycemia, causes long term health conse-quences. Chronic wound is frequently occurring in diabetes patients due to compromised wound healing capability. Management of wounds in diabetic patients remains a clinical challenge despite many advancements in the field of science and technology. Increasing evidence indicates that alteration of the biochemical milieu resulting from alteration in inflammatory cytokines and matrix metalloproteinase, decrease in fibroblast and keratinocyte functioning, neuropathy, altered leukocyte functioning, infection, etc., plays a significant role in impaired wound healing in diabetic people. Apart from the current pharmacotherapy, different other approaches like the use of conventional drugs, antidiabetic medication, antibiotics, debridement, offloading, platelet-rich plasma, growth factor, oxygen therapy, negative pressure wound therapy, low-level laser, extracorporeal shock wave bioengineered substitute can be considered in the management of diabetic wounds. Drugs/therapeutic strategy that induce angiogenesis and collagen synthesis, inhibition of MMPs, reduction of oxidative stress, controlling hyperglycemia, increase growth factors, regulate inflammatory cytokines, cause NO induction, induce fibroblast and keratinocyte proliferation, control microbial infections are considered important in controlling diabetic wound. Further, medicinal plants and/or phytoconstituents also offer a viable alternative in the treatment of diabetic wound. The focus of the present review is to highlight the molecular and cellular mechanisms, and discuss the drug targets and treatment strategies involved in the diabetic wound.
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Affiliation(s)
- Raja Chakraborty
- Institute of Pharmacy, Assam Don Bosco University, Kamrup 782402, Assam, India
| | - Pobitra Borah
- School of Pharmacy, Graphic Era Hill University, Dehradun 248002, Uttarakhand, India
| | - Partha Pratim Dutta
- Faculty of Pharmaceutical Science, Assam down town University, Guwahati 781026, Assam, India
| | - Saikat Sen
- Faculty of Pharmaceutical Science, Assam down town University, Guwahati 781026, Assam, India
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Awasthi A, Vishwas S, Gulati M, Corrie L, Kaur J, Khursheed R, Alam A, Alkhayl FF, Khan FR, Nagarethinam S, Kumar R, Arya K, Kumar B, Chellappan DK, Gupta G, Dua K, Singh SK. Expanding arsenal against diabetic wounds using nanomedicines and nanomaterials: Success so far and bottlenecks. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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13
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Hu WW, Lin YT. Alginate/polycaprolactone composite fibers as multifunctional wound dressings. Carbohydr Polym 2022; 289:119440. [DOI: 10.1016/j.carbpol.2022.119440] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 03/24/2022] [Accepted: 03/30/2022] [Indexed: 12/20/2022]
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14
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Thomas A, Bankar N, Nagore D, Kothapalli L, Chitlange S. Herbal Oils for Treatment of Chronic and Diabetic Wounds: A Systematic Review. Curr Diabetes Rev 2022; 18:e220321192406. [PMID: 34225631 DOI: 10.2174/1573399817666210322151700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 11/29/2020] [Accepted: 02/13/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND In the present scenario, diabetes is a growing health challenge, and its occurrence is growing across the globe. Diabetes, with its complications like diabetic wounds, vasculopathy, neuropathy, wound infections, and oxidative stress, is a serious cause of mortality worldwide. INTRODUCTION Among the various complications, treatment of diabetic foot and ulcers is one of the major concerns in patients who are suffering from diabetes. The causative factors for this condition include increased oxidative stress, high blood glucose levels, vascular insufficiency, and microbial infections, and many a time, if left untreated, it may even lead to amputations of the lower extremities. The present therapy for the treatment of diabetic wounds mainly involves the use of synthetic moieties and other biotechnology-derived biomolecules, including growth factors. Few plant products are also useful in the treatment of wounds. METHODS Essential oils derived from various herbs are reported to possess significant wound healing potential and promote blood clotting, help to fight infections, and accelerate the wound healing process. Hence, the present review is a systematic analysis of all the available data on the use of the natural oils with their biological source, active phytochemical constituents present, and the probable mechanism of action for the treatment of chronic and diabetic wounds in suitable animal models. A methodical collection of data was performed, and information was searched up to April 2020 in entirety. Key phrases used for the data search include the pathophysiology of wounds, diabetic foot wound and its complications, natural oils for chronic and diabetic wound treatment. RESULTS This review summarizes the natural oils which are reported in the literature to be beneficial in the treatment of chronic wounds, while some oils have been specifically also studied against wounds in diabetic rats. Essential oils are said to interact with the body pharmacologically, physiologically and psychologically and help in rapid wound healing. However, the majority of the literature studies have demonstrated wound healing activity only in animal models (preclinical data), and further clinical studies are necessary. CONCLUSION This review provides a platform for further studies on the effective utilization of natural oils in the treatment of chronic and diabetic wounds, especially if oils are to receive credibility in the management of chronic wounds.
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Affiliation(s)
- Asha Thomas
- Department of Pharmaceutical Chemistry, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, MS, India
| | - Nilam Bankar
- Department of Pharmaceutical Chemistry, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, MS, India
| | - Dheeraj Nagore
- Department of Pharmaceutical Chemistry, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, MS, India
| | - Lata Kothapalli
- Department of Pharmaceutical Chemistry, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, MS, India
| | - Sohan Chitlange
- Department of Pharmaceutical Chemistry, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, MS, India
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15
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Phenytoin-loaded bioactive nanoparticles for the treatment of diabetic pressure ulcers: formulation and in vitro/in vivo evaluation. Drug Deliv Transl Res 2022; 12:2936-2949. [PMID: 35403947 PMCID: PMC9636106 DOI: 10.1007/s13346-022-01156-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/27/2022] [Indexed: 12/16/2022]
Abstract
Drug repurposing offers the chance to explore the full potential of existing drugs while reducing drug development time and costs. For instance, the anticonvulsant drug phenytoin (PHT) has been investigated for its wound healing properties. However, its poor solubility and variability of doses used topically limit its use. Hence, the aim of this study was to improve the properties and wound healing efficacy of PHT for the treatment of diabetic bedsores. PHT was encapsulated, using a modified ionic gelation method, in either positively or negatively charged chitosan-alginate nanoparticles (NPs), which possess previously demonstrated wound healing potential. These NPs were characterized by transmission electron microscopy, differential scanning calorimetry, and Fourier-transform infrared spectroscopy. PHT-loaded NPs were evaluated in vivo for their pressure ulcers' healing potential using diabetic rats. The prepared NPs, especially the positively charged particles, exhibited superior wound healing efficacy compared to PHT suspension, with respect to healing rates, granulation tissue formation, tissue maturation, and collagen content. The positively charged NPs resulted in a 56.54% wound closure at day 7, compared to 37% for PHT suspension. Moreover, skin treated with these NPs showed a mature dermis structure with skin appendages, which were absent in all other groups, in addition to the highest collagen content of 63.65%. In conclusion, the use of a bioactive carrier enhanced the healing properties of PHT and allowed the use of relatively low doses of the drug. Our findings suggest that the prepared NPs offer an effective antibiotic-free delivery system for diabetic wound healing applications.
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16
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Li W, Jiang YX, Chen QY, Wang GG. Recombinant fusion protein by lysozyme and antibacterial peptide enhances ischemic wound healing via angiogenesis and reduction of inflammation in diabetic db/db mice. PeerJ 2021; 9:e11256. [PMID: 33959422 PMCID: PMC8054754 DOI: 10.7717/peerj.11256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 03/21/2021] [Indexed: 01/11/2023] Open
Abstract
Background & aims Lysozyme and antibacterial peptides have been reported to broad-spectrum antibacterial activity and can further improve wound healing. The aim of this study was to assess the effectiveness of a recombinant fusion protein created by combining lysozyme and an antibacterial peptide in forming new vessels and wound healing in an ischemic hind limb. Methods An ischemic hind limb model was established by isolation and ligation of the femoral artery in diabetic db/db mice. Cutaneous wounds were created with or without ischemia. Adductor muscles and wounds were treated with or without the fusion protein. Results The fusion protein accelerated ischemic diabetic wound healing and attenuated impairment of ischemic adductor muscle . Further, the fusion protein elevated expression of platelet derived growth factor (PDGF) and vascular endothelial growth factor (VEGF) protein and mRNA in ischemic adductor muscle, reduced levels of tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) in serum and expression of phosphorylated nuclear factor κB (p-NF-κB) and p-IKB α in ischemic adductor. The fusion protein also enhanced levels of phosphorylated VEGF and PDGF receptors in the ischemic adductor muscles from diabetic db/db mice. Conclusion The data showed that the beneficial effects of the fusion protein on ischemic wound healing may be associated with angiogenesis and reduction of inflammatory response in the ischemic adductor muscles of diabetic db/db mice.
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Affiliation(s)
- Wei Li
- Department of Pathophysiology, School of Basic Medicine, Wannan Medical College, Wuhu, Anhui, China
| | - Yu-Xin Jiang
- Department of Basic Medicine, School of Medicine, Jiaxing University, Jiaxing, Zhejiang, China
| | - Qing-Ying Chen
- Department of Integrated traditional and western medicine, General Hospital of Jinan Military Command, Jinan, Shandong, China
| | - Guo-Guang Wang
- Department of Pathophysiology, School of Basic Medicine, Wannan Medical College, Wuhu, Anhui, China
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17
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Banerjee A, Koul V, Bhattacharyya J. Fabrication of In Situ Layered Hydrogel Scaffold for the Co-delivery of PGDF-BB/Chlorhexidine to Regulate Proinflammatory Cytokines, Growth Factors, and MMP-9 in a Diabetic Skin Defect Albino Rat Model. Biomacromolecules 2021; 22:1885-1900. [PMID: 33899465 DOI: 10.1021/acs.biomac.0c01709] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Diabetes mellitus (DM)-associated impairments in wound healing include prolonged inflammation, the overexpression of matrix metalloproteases (MMPs), and low levels of growth factors at the wound site. To this end, a layer-by-layer scaffold (SL-B-L) made of cross-linked silk fibroin and hyaluronic acid is developed to deliver chlorhexidine, an antimicrobial agent and an MMP-9 inhibitor, along with the PDGF-BB protein. SL-B-L exhibited highly porous morphology. Diabetic rats treated with SL-B-L demonstrated an early wound closure, a fully reconstructed epithelial layer by 14 days, and reduced levels of IL-6, TNF-α, TGF-β1, and MMP-9. Interestingly, SL-B-L treatment increased angiogenesis, the bioavailability of collagen, DNA content, and VEGF-A levels. Furthermore, enhanced keratinocyte-fibroblast interaction along with ordered collagen deposition was observed in SL-B-L-treated rats. Most interestingly, when compared with a clinically used scaffold SEESKIN+, SL-B-L outperformed in promoting wound healing in a diabetic rat model by regulating the inflammation while delivering growth factor and the MMP-9 inhibitor.
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Affiliation(s)
- Ahana Banerjee
- Centre for Biomedical Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.,Department of Biomedical Engineering, All India Institute of Medical Science, Delhi, New Delhi 110016, India
| | - Veena Koul
- Centre for Biomedical Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.,Department of Biomedical Engineering, All India Institute of Medical Science, Delhi, New Delhi 110016, India
| | - Jayanta Bhattacharyya
- Centre for Biomedical Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.,Department of Biomedical Engineering, All India Institute of Medical Science, Delhi, New Delhi 110016, India
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18
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Di Santo MC, Alaimo A, Acebedo SL, Spagnuolo C, Pozner R, Pérez OE. Biological responses induced by high molecular weight chitosan administrated jointly with Platelet-derived Growth Factors in different mammalian cell lines. Int J Biol Macromol 2020; 158:953-967. [PMID: 32423872 DOI: 10.1016/j.ijbiomac.2020.05.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/27/2020] [Accepted: 05/05/2020] [Indexed: 12/13/2022]
Abstract
In this work, we studied cellular responses known to be involved in tissue regeneration, such as proliferation, migration and tubulogenesis under High Molecular Weight Chitosan (HMWC) and recombinant Platelet-derived Growth Factor (PDGF) treatments using an in vitro cell culture approach. We also analysed changes in mitochondrial dynamics that could be associated with such biological responses. For this proposes, endothelial human cell lines (EA.hy926 and ECFC) and 3T3-L1 mouse fibroblasts were used. The intracellular uptake of HMWC and their co-localization with acidic compartments were evaluated. Our results show that HMWC enhance PDGF-induced proliferation and cell migration in 3T3-L1 fibroblasts. An increase in PDGF-induced mitochondrial fragmentation was observed in 3T3-L1 cell line, but not in EA.hy926 cells, after the addition of HMWC. Endothelial cells, EA.hy926 and ECFC, potentiate their tubulogenesis capacity with the only addition of HMWC. The HMWC/PDGF-BB treatment notably enhanced tubule formation showing a synergistic effect when act combined in cell culture medium. The knowledge of these cellular responses can be used to design new tissue repair strategies using HMWC and PDGF.
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Affiliation(s)
- Mariana Carolina Di Santo
- Departamento de Química Biológica, Laboratorio Interdisciplinario de Dinámica Celular y Nanoherramientas, CONICET-Universidad de Buenos Aires, Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina.
| | - Agustina Alaimo
- Departamento de Química Biológica, Laboratorio Interdisciplinario de Dinámica Celular y Nanoherramientas, CONICET-Universidad de Buenos Aires, Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina.
| | - Sofía Lorena Acebedo
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, CONICET-Universidad de Buenos Aires, Centro de Investigación en Hidratos de Carbono (CIHIDECAR), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina.
| | - Carla Spagnuolo
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, CONICET-Universidad de Buenos Aires, Centro de Investigación en Hidratos de Carbono (CIHIDECAR), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina.
| | - Roberto Pozner
- Laboratorio Trombosis Experimental, Instituto de Medicina Experimental (IMEX), CONICET, Academia Nacional de Medicina, Pacheco de Melo 3081, 1425 Buenos Aires, Argentina; Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina.
| | - Oscar Edgardo Pérez
- Departamento de Química Biológica, Laboratorio Interdisciplinario de Dinámica Celular y Nanoherramientas, CONICET-Universidad de Buenos Aires, Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina.
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19
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Patel S, Srivastava S, Singh MR, Singh D. Mechanistic insight into diabetic wounds: Pathogenesis, molecular targets and treatment strategies to pace wound healing. Biomed Pharmacother 2019; 112:108615. [PMID: 30784919 DOI: 10.1016/j.biopha.2019.108615] [Citation(s) in RCA: 437] [Impact Index Per Article: 87.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 01/19/2019] [Accepted: 01/23/2019] [Indexed: 12/15/2022] Open
Abstract
Wound management in diabetic patient is of an extreme clinical and social concern. The delayed and impaired healing makes it more critical for research focus. The research on impaired healing process is proceeding hastily evident by new therapeutic approaches other than conventional such as single growth factor, dual growth factor, skin substitutes, cytokine stimulators, cytokine inhibitors, matrix metalloproteinase inhibitors, gene and stem cell therapy, extracellular matrix and angiogenesis stimulators. Although numerous studies are available that support delayed wound healing in diabetes but detailed mechanistic insight including factors involved and their role still needs to be revealed. This review mainly focuses on the molecular cascades of cytokines (with growth factors) and erstwhile factors responsible for delayed wound healing, molecular targets and recent advancements in complete healing and its cure. Present article briefed recent pioneering information on possible molecular targets and treatment strategies including clinical trials to clinicians and researchers working in similar area.
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Affiliation(s)
- Satish Patel
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, 492010, Raipur, C.G., India
| | - Shikha Srivastava
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, 492010, Raipur, C.G., India
| | - Manju Rawat Singh
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, 492010, Raipur, C.G., India
| | - Deependra Singh
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, 492010, Raipur, C.G., India.
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20
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Folestad E, Kunath A, Wågsäter D. PDGF-C and PDGF-D signaling in vascular diseases and animal models. Mol Aspects Med 2018; 62:1-11. [PMID: 29410092 DOI: 10.1016/j.mam.2018.01.005] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/14/2017] [Accepted: 01/22/2018] [Indexed: 01/06/2023]
Abstract
Members of the platelet-derived growth factor (PDGF) family are well known to be involved in different pathological conditions. The cellular and molecular mechanisms induced by the PDGF signaling have been well studied. Nevertheless, there is much more to discover about their functions and some important questions to be answered. This review summarizes the known roles of two of the PDGFs, PDGF-C and PDGF-D, in vascular diseases. There are clear implications for these growth factors in several vascular diseases, such as atherosclerosis and stroke. The PDGF receptors are broadly expressed in the cardiovascular system in cells such as fibroblasts, smooth muscle cells and pericytes. Altered expression of the receptors and the ligands have been found in various cardiovascular diseases and current studies have shown important implications of PDGF-C and PDGF-D signaling in fibrosis, neovascularization, atherosclerosis and restenosis.
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Affiliation(s)
- Erika Folestad
- Division of Vascular Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Anne Kunath
- Division of Drug Research, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Dick Wågsäter
- Division of Drug Research, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.
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21
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Trøstrup H, Lerche CJ, Christophersen LJ, Thomsen K, Jensen PØ, Hougen HP, Høiby N, Moser C. Pseudomonas aeruginosa biofilm hampers murine central wound healing by suppression of vascular epithelial growth factor. Int Wound J 2017; 15:123-132. [PMID: 29178668 DOI: 10.1111/iwj.12846] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 10/01/2017] [Indexed: 01/16/2023] Open
Abstract
Biofilm-infected wounds are clinically challenging. Vascular endothelial growth factor and host defence S100A8/A9 are crucial for wound healing but may be suppressed by biofilms. The natural course of Pseudomonas aeruginosa biofilm infection was compared in central and peripheral zones of burn-wounded, infection-susceptible BALB/c mice, which display delayed wound closure compared to C3H/HeN mice. Wounds were evaluated histopathologically 4, 7 or 10 days post-infection. Photoplanimetry evaluated necrotic areas. P. aeruginosa biofilm suppressed vascular endothelial growth factor levels centrally in BALB/c wounds but increased peripheral levels 4-7 days post-infection. Central zones of the burn wound displayed lower levels of central vascular endothelial growth factor as observed 4 and 7 days post-infection in BALB/c mice compared to their C3H/HeN counterparts. Biofilm suppressed early, centrally located S100A8/A9 in BALB/c and centrally and peripherally later on in C3H/HeN wounds as compared to uninfected mice. Peripheral polymorphonuclear-dominated inflammation and larger necrosis were observed in BALB/c wounds. In conclusion, P. aeruginosa biofilm modulates wounds by suppressing central, but inducing peripheral, vascular endothelial growth factor levels and reducing host response in wounds of BALB/c mice. This suppression is detrimental to the resolution of biofilm-infected necrosis.
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Affiliation(s)
- Hannah Trøstrup
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Christian J Lerche
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Lars J Christophersen
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Kim Thomsen
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Peter Ø Jensen
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Hans Petter Hougen
- Department of Forensic Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Niels Høiby
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Institute for Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Claus Moser
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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22
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Paquin-Veillette J, Lizotte F, Robillard S, Béland R, Breton MA, Guay A, Despatis MA, Geraldes P. Deletion of AT2 Receptor Prevents SHP-1-Induced VEGF Inhibition and Improves Blood Flow Reperfusion in Diabetic Ischemic Hindlimb. Arterioscler Thromb Vasc Biol 2017; 37:2291-2300. [PMID: 29074590 DOI: 10.1161/atvbaha.117.309977] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 10/05/2017] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Ischemia caused by narrowing of femoral artery is a major cause of peripheral arterial disease and morbidity affecting patients with diabetes mellitus. We have previously reported that the inhibition of the angiogenic response to VEGF (vascular endothelial growth factor) in diabetic mice was associated with the increased expression of SHP-1 (SH2 domain-containing phosphatase 1), a protein that can be activated by the AT2 (angiotensin II type 2) receptor. Deletion of AT2 receptor has been shown to promote angiogenesis within the ischemic muscle. However, the relative impact of AT2 receptor in diabetic condition remains unknown. APPROACH AND RESULTS Nondiabetic and diabetic AT2 null (Atgr2-/Y) mice underwent femoral artery ligation after 2 months of diabetes mellitus. Blood perfusion was measured every week ≤4 weeks post-surgery. Expression of the VEGF, SHP-1, and renin-angiotensin pathways was evaluated. Blood flow in the ischemic muscle of diabetic Atgr2-/Y mice recovered faster and ≤80% after 4 weeks compared with 51% recovery in diabetic control littermates. Diabetic Atgr2-/Y had reduced apoptotic endothelial cells and elevated small vessel formation compared with diabetic Atgr2+/Y mice, as well as increased SHP-1 expression and reduced VEGF receptor activity. In endothelial cells, high glucose levels and AT2 agonist treatment did not change SHP-1, VEGF, and VEGF receptor expression. However, the activity of SHP-1 and its association with the VEGF receptors were increased, causing inhibition of the VEGF action in endothelial cell proliferation and migration. CONCLUSIONS Our results suggest that the deletion of AT2 receptor reduced SHP-1 activity and restored VEGF actions, leading to an increased blood flow reperfusion after ischemia in diabetes mellitus.
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MESH Headings
- Animals
- Blood Glucose/metabolism
- Cattle
- Cell Movement
- Cell Proliferation
- Cells, Cultured
- Diabetes Mellitus/genetics
- Diabetes Mellitus/metabolism
- Diabetes Mellitus/physiopathology
- Diabetic Angiopathies/genetics
- Diabetic Angiopathies/metabolism
- Diabetic Angiopathies/physiopathology
- Disease Models, Animal
- Endothelial Cells/metabolism
- Gene Deletion
- Genotype
- Hindlimb
- Ischemia/genetics
- Ischemia/metabolism
- Ischemia/physiopathology
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Skeletal/blood supply
- Neovascularization, Physiologic
- Phenotype
- Protein Tyrosine Phosphatase, Non-Receptor Type 6/metabolism
- Receptor, Angiotensin, Type 2/deficiency
- Receptor, Angiotensin, Type 2/genetics
- Receptors, Vascular Endothelial Growth Factor/metabolism
- Recovery of Function
- Regional Blood Flow
- Renin-Angiotensin System
- Signal Transduction
- Time Factors
- Vascular Endothelial Growth Factor A/metabolism
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Affiliation(s)
- Judith Paquin-Veillette
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke (J.P.-V., F.L., S.R., R.B., M.-A.B., A.G., P.G.), Québec, Canada; and Departments of Surgery (M.-A.D.) and Medicine (P.G.), Division of Endocrinology, Université de Sherbrooke, Québec, Canada
| | - Farah Lizotte
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke (J.P.-V., F.L., S.R., R.B., M.-A.B., A.G., P.G.), Québec, Canada; and Departments of Surgery (M.-A.D.) and Medicine (P.G.), Division of Endocrinology, Université de Sherbrooke, Québec, Canada
| | - Stéphanie Robillard
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke (J.P.-V., F.L., S.R., R.B., M.-A.B., A.G., P.G.), Québec, Canada; and Departments of Surgery (M.-A.D.) and Medicine (P.G.), Division of Endocrinology, Université de Sherbrooke, Québec, Canada
| | - Raphaël Béland
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke (J.P.-V., F.L., S.R., R.B., M.-A.B., A.G., P.G.), Québec, Canada; and Departments of Surgery (M.-A.D.) and Medicine (P.G.), Division of Endocrinology, Université de Sherbrooke, Québec, Canada
| | - Marc-André Breton
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke (J.P.-V., F.L., S.R., R.B., M.-A.B., A.G., P.G.), Québec, Canada; and Departments of Surgery (M.-A.D.) and Medicine (P.G.), Division of Endocrinology, Université de Sherbrooke, Québec, Canada
| | - Andréanne Guay
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke (J.P.-V., F.L., S.R., R.B., M.-A.B., A.G., P.G.), Québec, Canada; and Departments of Surgery (M.-A.D.) and Medicine (P.G.), Division of Endocrinology, Université de Sherbrooke, Québec, Canada
| | - Marc-Antoine Despatis
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke (J.P.-V., F.L., S.R., R.B., M.-A.B., A.G., P.G.), Québec, Canada; and Departments of Surgery (M.-A.D.) and Medicine (P.G.), Division of Endocrinology, Université de Sherbrooke, Québec, Canada
| | - Pedro Geraldes
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke (J.P.-V., F.L., S.R., R.B., M.-A.B., A.G., P.G.), Québec, Canada; and Departments of Surgery (M.-A.D.) and Medicine (P.G.), Division of Endocrinology, Université de Sherbrooke, Québec, Canada.
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23
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Ariyanti AD, Sisjayawan J, Zhang J, Zhang JQ, Wang GX, Miyagishi M, Wu SR, Kasim V. Elevating VEGF-A and PDGF-BB secretion by salidroside enhances neoangiogenesis in diabetic hind-limb ischemia. Oncotarget 2017; 8:97187-97205. [PMID: 29228603 PMCID: PMC5722555 DOI: 10.18632/oncotarget.21907] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 09/23/2017] [Indexed: 12/30/2022] Open
Abstract
Hind-limb ischemia (HLI) is one of the major complication of diabetic patients. Angiogenesis potential in diabetic patients is severely disrupted, and the mechanism underlying it has not been fully elucidated, making it an obstacle for developing an efficient therapeutic angiogenesis strategy. Skeletal muscle cells, through their paracrine function, had been known to be critical for neoangiogenesis. Here we found that hyperglycemia upregulates the expression of skeletal muscle cells prolyl hydroxylase domain 3 (PHD3), which resulted in the decrease of the secretion of angiogenic factors, especially VEGF-A and PDGF-BB. We showed that treatment with salidroside, a small molecule drug, significantly suppresses PHD3 expression and increases VEGF-A and PDGF-BB secretion from skeletal muscle cells, which in turn enhances the proliferation and migration potentials of endothelial and smooth muscle cells. Finally, we demonstrated that intramuscular injection of salidroside into the ischemic hind limbs of diabetic HLI model mice could efficiently induce neoangiogenesis and blood perfusion recovery. Thus, our novel findings not only reveal the effects of hyperglycemia on the angiogenesis potential of skeletal muscle cells and the mechanism underlying it, but also provides a novel finding suggesting that salidroside might be a potential small molecule drug for diabetic HLI.
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Affiliation(s)
- Agnes Dwi Ariyanti
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing 400044, China
| | - Julita Sisjayawan
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing 400044, China
| | - Jing Zhang
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Jian-Qi Zhang
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Gui-Xue Wang
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing 400044, China
| | - Makoto Miyagishi
- Molecular Composite Medicine Research Group, Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8566, Japan
| | - Shou-Rong Wu
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing 400044, China.,The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Vivi Kasim
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing 400044, China
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24
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Gökşen S, Balabanlı B, Coşkun-Cevher Ş. Application of platelet derived growth factor-BB and diabetic wound healing: the relationship with oxidative events. Free Radic Res 2017; 51:498-505. [DOI: 10.1080/10715762.2017.1327715] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sibel Gökşen
- Department of Biology, Faculty of Science, Gazi University, Ankara, Turkey
| | - Barbaros Balabanlı
- Department of Biology, Faculty of Science, Gazi University, Ankara, Turkey
| | - Şule Coşkun-Cevher
- Department of Biology, Faculty of Science, Gazi University, Ankara, Turkey
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25
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Zarei F, Negahdari B, Eatemadi A. Diabetic ulcer regeneration: stem cells, biomaterials, growth factors. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:26-32. [PMID: 28355923 DOI: 10.1080/21691401.2017.1304407] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The impairment of ulcer wound healing in diabetic patients is a vital clinical problem affecting millions of patients. Several clinical and basic science studies have demonstrated that stem cell therapy, to be effective in healing diabetic ulcer. Furthermore, these ulcer wounds may be healed from molecular maneuvering of growth factors to improve microcirculation within the ulcer wound. In addition, ulcer wound dressings may be employed as medicated systems, through the delivery of drugs, growth factors, peptides and stem cells. These dressing materials can include natural, modified and synthetic polymers, as well as their mixtures or combinations. This review paper will give a summary of some of the recent advances on the application of stem cells, biomaterials and growth factors in the treatment of diabetic ulcer wound.
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Affiliation(s)
- Farshad Zarei
- a Department of Surgery , Lorestan University of Medical Sciences , Khorramabad , Iran
| | - Babak Negahdari
- b Department of Medical Biotechnology , School of Advanced Technologies in Medicine, Tehran University of Medical sciences , Tehran , Iran
| | - Ali Eatemadi
- b Department of Medical Biotechnology , School of Advanced Technologies in Medicine, Tehran University of Medical sciences , Tehran , Iran.,c Department of Medical Biotechnology , School of Medicine, Lorestan University of Medical sciences , Khoramabad , Iran
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Zhang Z, Du J, Li Y, Wu J, Yu F, Chen Y. An aptamer-patterned hydrogel for the controlled capture and release of proteins via biorthogonal click chemistry and DNA hybridization. J Mater Chem B 2017; 5:5974-5982. [DOI: 10.1039/c7tb00883j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An aptamer-patterned hydrogel can realize immobilization and controlled release of proteins in a spatiotemporal manner.
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Affiliation(s)
- Zheng Zhang
- State Key Laboratory of Marine Resource Utilization in South China Sea
- Hainan University
- Haikou 570228
- P. R. China
| | - Jie Du
- State Key Laboratory of Marine Resource Utilization in South China Sea
- Hainan University
- Haikou 570228
- P. R. China
- Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources
| | - Yuli Li
- Institution of Plastic Surgery
- Weifang Medical University
- Weifang 261042
- P. R. China
| | - Jincai Wu
- Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources
- Hainan University
- Haikou 570228
- P. R. China
| | - Feng Yu
- State Key Laboratory of Marine Resource Utilization in South China Sea
- Hainan University
- Haikou 570228
- P. R. China
- Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources
| | - Yong Chen
- State Key Laboratory of Marine Resource Utilization in South China Sea
- Hainan University
- Haikou 570228
- P. R. China
- Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources
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Yang P, Pei Q, Yu T, Chang Q, Wang D, Gao M, Zhang X, Liu Y. Compromised Wound Healing in Ischemic Type 2 Diabetic Rats. PLoS One 2016; 11:e0152068. [PMID: 27028201 PMCID: PMC4814123 DOI: 10.1371/journal.pone.0152068] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 03/07/2016] [Indexed: 02/06/2023] Open
Abstract
Ischemia is one of the main epidemic factors and characteristics of diabetic chronic wounds, and exerts a profound effect on wound healing. To explore the mechanism of and the cure for diabetic impaired wound healing, we established a type 2 diabetic rat model. We used an 8weeks high fat diet (HFD) feeding regimen followed by multiple injections of streptozotocin (STZ) at a dose of 10mg/kg to induce Wister rat to develop type 2 diabetes. Metabolic characteristics were assessed at the 5th week after the STZ injections to confirm the establishment of diabetes mellitus on the rodent model. A bipedicle flap, with length to width ratio 1.5, was performed on the back of the rat to make the flap area ischemic. Closure of excisional wounds on this bipedicle flap and related physiological and pathological changes were studied using histological, immunohistochemical, real time PCR and protein immunoblot approaches. Our results demonstrated that a combination of HFD feeding and a low dose of STZ is capable of inducing the rats to develop type 2 diabetes with noticeable insulin resistance, persistent hyperglycemia, moderate degree of insulinemia, as well as high serum cholesterol and high triglyceride levels. The excision wounds on the ischemic double pedicle flap showed deteriorative healing features comparing with non-ischemic diabetic wounds, including: delayed healing, exorbitant wound inflammatory response, excessive and prolonged ROS production and excessive production of MMPs. Our study suggested that HFD feeding combined with STZ injection could induce type 2 diabetes in rat. Our ischemic diabetic wound model is suitable for the investigation of human diabetic related wound repair; especically for diabetic chronic wounds.
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Affiliation(s)
- Peilang Yang
- Department of Burn and Plastic Surgery, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai 200025, China
| | - Qing Pei
- Department of Burn and Plastic Surgery, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai 200025, China
| | - Tianyi Yu
- Department of Burn and Plastic Surgery, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai 200025, China
| | - Qingxuan Chang
- Department of Burn and Plastic Surgery, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai 200025, China
| | - Di Wang
- Department of Burn and Plastic Surgery, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai 200025, China
| | - Min Gao
- Department of Burn and Plastic Surgery, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai 200025, China
| | - Xiong Zhang
- Department of Burn and Plastic Surgery, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai 200025, China
| | - Yan Liu
- Department of Burn and Plastic Surgery, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai 200025, China
- * E-mail:
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Mittermayr R, Slezak P, Haffner N, Smolen D, Hartinger J, Hofmann A, Schense J, Spazierer D, Gampfer J, Goppelt A, Redl H. Controlled release of fibrin matrix-conjugated platelet derived growth factor improves ischemic tissue regeneration by functional angiogenesis. Acta Biomater 2016; 29:11-20. [PMID: 26497625 DOI: 10.1016/j.actbio.2015.10.028] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 10/12/2015] [Accepted: 10/16/2015] [Indexed: 12/09/2022]
Abstract
Sustained, local, low dose growth factor stimulus of target tissues/cells is believed to be of imminent importance in tissue regeneration and engineering. Recently, a technology was developed to bind growth factors to a fibrin matrix using the transglutaminase (TG) activity of factor XIIIa, thus allowing prolonged release through enzymatic cleavage. In this study we aimed to determine whether TG-PDGF.AB in fibrin could improve tissue regeneration in a standard ischemic flap model. In vitro determination of binding and release kinetics of TG-PDGF.AB allowed proof of concept of the developed binding technology. A single spray application of TG-PDGF.AB in fibrin matrix at a concentration of 10 and 100ng/ml significantly reduced ischemia-induced flap tissue necrosis in vivo on day 7 after ischemic impact compared to controls. TG-PDGF.AB at a concentration of 100ng/ml fibrin induced distinct angiogenesis as reflected by significantly improved tissue perfusion assessed by laser Doppler imaging as well as enhanced von Willebrand factor (vWF) protein expression determined by immunohistochemical means. In addition, significantly more mature microvessels were observed with 100ng/ml TG-PDGF.AB in fibrin compared to control and vehicle groups as evidenced by an improved smooth muscle actin (sma)/vWF protein ratio. In conclusion, PDGF.AB in a conjugated fibrin matrix effectively reduced ischemia-induced tissue necrosis, increased tissue perfusion and induced the growth of a mature and functional neovasculature. The sealing properties of the fibrin matrix in conjunction with the prolonged growth factor stimulus enabled by the TG-hook binding technology may present an innovative and suitable tool in tissue regeneration. STATEMENT OF SIGNIFICANCE In our experimental study we elucidated recombinant platelet derived growth factor (PDGF) as a potential candidate in inducing angiogenesis. To avoid preterm growth factor degradation in vivo PDGF.AB was covalently linked to a fibrin scaffold using a bi-domain functionalized peptide (FXIII substrate site and plasmin cleavage site). This allowed PDGF binding to fibrin during spray application to the donor site and subsequent prolonged release via endogenous plasmin. This resulted in a mature vascular network thus enhancing tissue perfusion and consequently improved clinical outcome. With our present work we could certainly provide researchers and clinicians with an innovative versatile and reproducible technology not only to induce functional vascularity but also to improve attempts in tissue engineering in general by e.g. using different growth factors. Hence, we believe that this approach studied in the present work may provide a valuable input in an effort to drive the aim forward bringing experimental work in tissue engineering to clinic by using a clinically well characterized and used fibrin scaffold in combination with a human recombinant growth factor (fibrin scaffold linked with the specific binding technology).
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Hu W, Huang Y. Targeting the platelet-derived growth factor signalling in cardiovascular disease. Clin Exp Pharmacol Physiol 2015; 42:1221-4. [DOI: 10.1111/1440-1681.12478] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 08/03/2015] [Accepted: 08/08/2015] [Indexed: 01/08/2023]
Affiliation(s)
- Weining Hu
- Shenzhen Research Institute; Institute of Vascular Medicine and Li Ka Shing Institute of Health Sciences; Chinese University of Hong Kong; Hong Kong China
| | - Yu Huang
- Shenzhen Research Institute; Institute of Vascular Medicine and Li Ka Shing Institute of Health Sciences; Chinese University of Hong Kong; Hong Kong China
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Pyun DG, Choi HJ, Yoon HS, Thambi T, Lee DS. Polyurethane foam containing rhEGF as a dressing material for healing diabetic wounds: Synthesis, characterization, in vitro and in vivo studies. Colloids Surf B Biointerfaces 2015; 135:699-706. [PMID: 26340359 DOI: 10.1016/j.colsurfb.2015.08.029] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 07/28/2015] [Accepted: 08/20/2015] [Indexed: 11/29/2022]
Abstract
Diabetic wounds are a major health issue associated with diabetes mellitus. To surmount this issue, we developed polyurethane foams (PUFs) incorporating varying amounts of recombinant human epidermal growth factor (rhEGF) (rhEGF-PUFs) as a wound dressing for diabetic wounds. From electron microscopy images, it was found that the pore size of the rhEGF-PUFs surface (the wound contact layer) was less than 100μm, regardless of rhEGF content. The release of rhEGF from the PUFs was evaluated using an enzyme-linked immunosorbent assay. The result showed that the release of rhEGF was time and concentration dependent, i.e., the amount of released rhEGF significantly increased as the immersion time and the rhEGF content of the PUFs increased. In vitro cytotoxicity testing showed that rhEGF-PUFs increased the viability of HaCaT human keratinocytes and CCD986-sk human fibroblasts, which indicated that the incorporated rhEGF maintained its biological activity. In an in vitro scratch wound healing assay, the wound closure rate was faster in CCD986-sk human fibroblasts than in HaCaT human keratinocytes. Finally, the rhEGF-PUFs were evaluated as an in vivo treatment in a full-thickness wound model in diabetized Sprague-Dawley rats. The result indicated that compared with PUFs, rhEGF-PUFs accelerated wound healing by promoting wound contraction, re-epithelialization, collagen deposition and the formation of a skin appendage. These findings demonstrate that rhEGF-PUFs are a promising dressing for diabetic wounds.
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Affiliation(s)
- Do Gi Pyun
- Department of Polymer Science and Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Hyun Jun Choi
- Department of Polymer Science and Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Hyoung Soon Yoon
- Biomedical Polymer R&D Institute, T&L, Co., Ltd., Anseong 456-812, Republic of Korea
| | - Thavasyappan Thambi
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Doo Sung Lee
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea.
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Alkali-treated konjac glucomannan film as a novel wound dressing. Carbohydr Polym 2015; 117:778-787. [DOI: 10.1016/j.carbpol.2014.10.047] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 10/15/2014] [Accepted: 10/16/2014] [Indexed: 11/22/2022]
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Zielins ER, Brett EA, Luan A, Hu MS, Walmsley GG, Paik K, Senarath-Yapa K, Atashroo DA, Wearda T, Lorenz HP, Wan DC, Longaker MT. Emerging drugs for the treatment of wound healing. Expert Opin Emerg Drugs 2015; 20:235-46. [PMID: 25704608 DOI: 10.1517/14728214.2015.1018176] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Wound healing can be characterized as underhealing, as in the setting of chronic wounds, or overhealing, occurring with hypertrophic scar formation after burn injury. Topical therapies targeting specific biochemical and molecular pathways represent a promising avenue for improving and, in some cases normalizing, the healing process. AREAS COVERED A brief overview of both normal and pathological wound healing has been provided, along with a review of the current clinical guidelines and treatment modalities for chronic wounds, burn wounds and scar formation. Next, the major avenues for wound healing drugs, along with drugs currently in development, are discussed. Finally, potential challenges to further drug development, and future research directions are discussed. EXPERT OPINION The large body of research concerning wound healing pathophysiology has provided multiple targets for topical therapies. Growth factor therapies with the ability to be targeted for localized release in the wound microenvironment are most promising, particularly when they modulate processes in the proliferative phase of wound healing.
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Affiliation(s)
- Elizabeth R Zielins
- Stanford University School of Medicine, Division of Plastic Surgery, Department of Surgery, Hagey Laboratory for Pediatric Regenerative Medicine , 257 Campus Drive, Stanford, CA 94305-5148 , USA +1 650 736 1707 ; +1 650 736 1705 ;
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Henshaw FR, Boughton P, Lo L, McLennan SV, Twigg SM. Topically applied connective tissue growth factor/CCN2 improves diabetic preclinical cutaneous wound healing: potential role for CTGF in human diabetic foot ulcer healing. J Diabetes Res 2015; 2015:236238. [PMID: 25789327 PMCID: PMC4348590 DOI: 10.1155/2015/236238] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 01/23/2015] [Accepted: 02/02/2015] [Indexed: 12/26/2022] Open
Abstract
AIMS/HYPOTHESIS Topical application of CTGF/CCN2 to rodent diabetic and control wounds was examined. In parallel research, correlation of CTGF wound fluid levels with healing rate in human diabetic foot ulcers was undertaken. METHODS Full thickness cutaneous wounds in diabetic and nondiabetic control rats were treated topically with 1 μg rhCTGF or vehicle alone, on 2 consecutive days. Wound healing rate was observed on day 14 and wound sites were examined for breaking strength and granulation tissue. In the human study across 32 subjects, serial CTGF regulation was analyzed longitudinally in postdebridement diabetic wound fluid. RESULTS CTGF treated diabetic wounds had an accelerated closure rate compared with vehicle treated diabetic wounds. Healed skin withstood more strain before breaking in CTGF treated rat wounds. Granulation tissue from CTGF treatment in diabetic wounds showed collagen IV accumulation compared with nondiabetic animals. Wound α-smooth muscle actin was increased in CTGF treated diabetic wounds compared with untreated diabetic wounds, as was macrophage infiltration. Endogenous wound fluid CTGF protein rate of increase in human diabetic foot ulcers correlated positively with foot ulcer healing rate (r = 0.406; P < 0.001). CONCLUSIONS/INTERPRETATION These data collectively increasingly substantiate a functional role for CTGF in human diabetic foot ulcers.
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Affiliation(s)
- F. R. Henshaw
- Sydney Medical School and Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia
| | - P. Boughton
- Department of Biomedical Engineering, School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW 2006, Australia
| | - L. Lo
- Sydney Medical School and Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia
| | - S. V. McLennan
- Sydney Medical School and Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia
- Department of Endocrinology, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia
| | - S. M. Twigg
- Sydney Medical School and Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia
- Department of Endocrinology, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia
- *S. M. Twigg:
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Kaltalioglu K, Coskun-Cevher S. A bioactive molecule in a complex wound healing process: platelet-derived growth factor. Int J Dermatol 2014; 54:972-7. [PMID: 25312059 DOI: 10.1111/ijd.12731] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 03/20/2014] [Accepted: 04/04/2014] [Indexed: 11/28/2022]
Abstract
Wound healing is considered to be particularly important after surgical procedures, and the most important wounds related to surgical procedures are incisional, excisional, and punch wounds. Research is ongoing to identify methods to heal non-closed wounds or to accelerate wound healing; however, wound healing is a complex process that includes many biological and physiological events, and it is affected by various local and systemic factors, including diabetes mellitus, infection, ischemia, and aging. Different cell types (such as platelets, macrophages, and neutrophils) release growth factors during the healing process, and platelet-derived growth factor is a particularly important mediator in most stages of wound healing. This review explores the relationship between platelet-derived growth factor and wound healing.
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A novel strategy for the treatment of chronic wounds based on the topical administration of rhEGF-loaded lipid nanoparticles: In vitro bioactivity and in vivo effectiveness in healing-impaired db/db mice. J Control Release 2014; 185:51-61. [DOI: 10.1016/j.jconrel.2014.04.032] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 04/15/2014] [Accepted: 04/18/2014] [Indexed: 12/29/2022]
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Jin S, Zhang M, Gao Y, Zhang X, Cui G, Zhang Y. The efficacy of Jing Wan Hong ointment for nerve injury diabetic foot ulcer and its mechanisms. J Diabetes Res 2014; 2014:259412. [PMID: 25538944 PMCID: PMC4247915 DOI: 10.1155/2014/259412] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 10/17/2014] [Accepted: 10/28/2014] [Indexed: 01/09/2023] Open
Abstract
Jing Wan Hong ointment contains 30 kinds of Chinese herbs, with functions of activating blood circulation to disperse blood stasis, clearing heat, eliminating dampness, and reducing swelling by detoxification. Therefore, Jing Wan Hong ointment may facilitate the healing of ulcers. The aim of this study was to evaluate the efficacy and mechanisms of Jing Wan Hong ointment for healing diabetic foot ulceration in Wistar rats induced by streptozotocin and sciatic nerve damage. The results showed that Jing Wan Hong ointment had a marked effect on foot ulcers in diabetic rats induced by initial nerve injury. These effects were manifested by reducing the foot ulcer size and Wagner grade after seven days of treatment. The diabetic rats with foot ulcers were almost healed after 21 days of treatment. Moreover, the mechanisms of this effect seem to be dependent on increased expression of PDGF mRNA, but there was no influence on the expression of TGF-β, VEGF, and FLT-1 mRNA.
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Affiliation(s)
- Shumei Jin
- Tianjin Huanhu Hospital, Tianjin 300060, China
| | - Mixia Zhang
- Chinese Materia Medica College, Tianjin University of Traditional Chinese Medicine, No. 312 Anshanxi Road, Nankai District, Tianjin 300193, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Yan Gao
- Tianjin Children's Hospital, Tianjin 300074, China
| | | | - Guangzhi Cui
- Chinese Materia Medica College, Tianjin University of Traditional Chinese Medicine, No. 312 Anshanxi Road, Nankai District, Tianjin 300193, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
- *Guangzhi Cui: and
| | - Yanjun Zhang
- Chinese Materia Medica College, Tianjin University of Traditional Chinese Medicine, No. 312 Anshanxi Road, Nankai District, Tianjin 300193, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
- *Yanjun Zhang:
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Gainza G, Aguirre JJ, Pedraz JL, Hernández RM, Igartua M. rhEGF-loaded PLGA-Alginate microspheres enhance the healing of full-thickness excisional wounds in diabetised Wistar rats. Eur J Pharm Sci 2013; 50:243-52. [DOI: 10.1016/j.ejps.2013.07.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 05/14/2013] [Accepted: 07/05/2013] [Indexed: 01/13/2023]
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Lizotte F, Paré M, Denhez B, Leitges M, Guay A, Geraldes P. PKCδ impaired vessel formation and angiogenic factor expression in diabetic ischemic limbs. Diabetes 2013; 62:2948-57. [PMID: 23557702 PMCID: PMC3717846 DOI: 10.2337/db12-1432] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Accepted: 03/29/2013] [Indexed: 12/17/2022]
Abstract
Decreased collateral vessel formation in diabetic peripheral limbs is characterized by abnormalities of the angiogenic response to ischemia. Hyperglycemia is known to activate protein kinase C (PKC), affecting the expression and activity of growth factors such as vascular endothelial growth factor (VEGF) and platelet-derived growth factor (PDGF). The current study investigates the role of PKCδ in diabetes-induced poor collateral vessel formation and inhibition of angiogenic factors expression and actions. Ischemic adductor muscles of diabetic Prkcd(+/+) mice exhibited reduced blood reperfusion, vascular density, and number of small vessels compared with nondiabetic Prkcd(+/+) mice. By contrast, diabetic Prkcd(-/-) mice showed significant increased blood flow, capillary density, and number of capillaries. Although expression of various PKC isoforms was unchanged, activation of PKCδ was increased in diabetic Prkcd(+/+) mice. VEGF and PDGF mRNA and protein expression were decreased in the muscles of diabetic Prkcd(+/+) mice and were normalized in diabetic Prkcd(-/-) mice. Furthermore, phosphorylation of VEGF receptor 2 (VEGFR2) and PDGF receptor-β (PDGFR-β) were blunted in diabetic Prkcd(+/+) mice but elevated in diabetic Prkcd(-/-) mice. The inhibition of VEGFR2 and PDGFR-β activity was associated with increased SHP-1 expression. In conclusion, our data have uncovered the mechanisms by which PKCδ activation induced poor collateral vessel formation, offering potential novel targets to regulate angiogenesis therapeutically in diabetic patients.
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Affiliation(s)
- Farah Lizotte
- Clinical Research Center Étienne Le-Bel and Division of Endocrinology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Martin Paré
- Clinical Research Center Étienne Le-Bel and Division of Endocrinology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Benoit Denhez
- Clinical Research Center Étienne Le-Bel and Division of Endocrinology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Michael Leitges
- The Biotechnology Centre of Oslo, University of Oslo, Oslo, Norway
| | - Andréanne Guay
- Clinical Research Center Étienne Le-Bel and Division of Endocrinology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Pedro Geraldes
- Clinical Research Center Étienne Le-Bel and Division of Endocrinology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada
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Moura LIF, Dias AMA, Carvalho E, de Sousa HC. Recent advances on the development of wound dressings for diabetic foot ulcer treatment--a review. Acta Biomater 2013; 9:7093-114. [PMID: 23542233 DOI: 10.1016/j.actbio.2013.03.033] [Citation(s) in RCA: 457] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 03/06/2013] [Accepted: 03/21/2013] [Indexed: 12/13/2022]
Abstract
Diabetic foot ulcers (DFUs) are a chronic, non-healing complication of diabetes that lead to high hospital costs and, in extreme cases, to amputation. Diabetic neuropathy, peripheral vascular disease, abnormal cellular and cytokine/chemokine activity are among the main factors that hinder diabetic wound repair. DFUs represent a current and important challenge in the development of novel and efficient wound dressings. In general, an ideal wound dressing should provide a moist wound environment, offer protection from secondary infections, remove wound exudate and promote tissue regeneration. However, no existing dressing fulfills all the requirements associated with DFU treatment and the choice of the correct dressing depends on the wound type and stage, injury extension, patient condition and the tissues involved. Currently, there are different types of commercially available wound dressings that can be used for DFU treatment which differ on their application modes, materials, shape and on the methods employed for production. Dressing materials can include natural, modified and synthetic polymers, as well as their mixtures or combinations, processed in the form of films, foams, hydrocolloids and hydrogels. Moreover, wound dressings may be employed as medicated systems, through the delivery of healing enhancers and therapeutic substances (drugs, growth factors, peptides, stem cells and/or other bioactive substances). This work reviews the state of the art and the most recent advances in the development of wound dressings for DFU treatment. Special emphasis is given to systems employing new polymeric biomaterials, and to the latest and innovative therapeutic strategies and delivery approaches.
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Affiliation(s)
- Liane I F Moura
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
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Kwon MJ, An S, Choi S, Nam K, Jung HS, Yoon CS, Ko JH, Jun HJ, Kim TK, Jung SJ, Park JH, Lee Y, Park JS. Effective healing of diabetic skin wounds by using nonviral gene therapy based on minicircle vascular endothelial growth factor DNA and a cationic dendrimer. J Gene Med 2013; 14:272-8. [PMID: 22407991 DOI: 10.1002/jgm.2618] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND The development of an efficient method to improve the wound healing process is urgently required for diabetic patients suffering a threat of limb amputations. Various growth factors have been proposed for treatment; however, more research still has to be carried out to maintain their curative effect. In the present study, we describe a simple nonviral gene therapy method for improving wound healing. METHODS Minicircle plasmid DNA encoding vascular endothelial growth factor (VEGF) was combined with an arginine-grafted cationic dendrimer, PAM-RG4. The formed complexes were injected subcutaneously into the skin wounds of diabetic mice. RESULTS Actively proliferating cells in wound tissue were efficiently transfected, resulting in a high level of VEGF expression. Within 6 days after injection, skin wounds in the diabetic mice were generally healed and displayed a well-ordered dermal structure, which was confirmed by histological staining. CONCLUSIONS This simple and effective gene therapy method may represent a powerful tool for the treatment of diabetic foot ulcers and other diseases that are refractory to treatment.
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Affiliation(s)
- Min J Kwon
- Department of Internal Medicine, Pusan Paik Hospital, College of Medicine, Inje University, Busan, Republic of Korea
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McLaughlin PJ, Immonen JA, Zagon IS. Topical naltrexone accelerates full-thickness wound closure in type 1 diabetic rats by stimulating angiogenesis. Exp Biol Med (Maywood) 2013; 238:733-43. [PMID: 23788174 DOI: 10.1177/1535370213492688] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Delays in wound healing often result in infection, chronic ulceration, and possible amputation of extremities. Impaired wound healing is a major complication of the 23 million people in the USA with diabetes, and financial and medical burdens are demanding new treatments for wound healing. Previous studies have demonstrated that topical application of the opioid antagonist naltrexone (NTX) dissolved in moisturizing cream reverses delays in wound closure in rats with streptozotocin-induced type 1 diabetes. A target of NTX's action is DNA synthesis and cell proliferation. In this study, granulation tissue was evaluated to ascertain the specific cellular targets that were impaired in diabetic wounds, as well as those that were enhanced following NTX application. Mast cell number as well as the number of new blood vessels immunoreactive to fibroblast growth factor-2 (FGF-2), vascular endothelial growth factor (VEGF), and alpha smooth muscle actin (α-SMA) antibodies were recorded at 3, 5, 8, 10, 15, and 20 days following creation of full-thickness dorsal cutaneous wounds in normal and type 1 diabetic rats. Diabetic rats displayed delays in wound closure as well as a reduction in the number of mast cells responding to the injury, and delays in the spatial and temporal expression of FGF-2, VEGF, and α-SMA in capillaries. Topical NTX accelerated the rate of wound closure and stimulated expression of angiogenic factors within granulation tissue of diabetic rats relative to control animals receiving saline in moisturizing cream. These data support observations that a novel biological pathway is impaired under diabetic conditions and can be modulated by topical NTX to enhance proliferative events in wound healing.
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Affiliation(s)
- Patricia J McLaughlin
- Department of Neural & Behavioral Sciences, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
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Mittermayr R, Branski L, Moritz M, Jeschke MG, Herndon DN, Traber D, Schense J, Gampfer J, Goppelt A, Redl H. Fibrin biomatrix-conjugated platelet-derived growth factor AB accelerates wound healing in severe thermal injury. J Tissue Eng Regen Med 2013; 10:E275-85. [DOI: 10.1002/term.1749] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Revised: 02/16/2013] [Accepted: 03/19/2013] [Indexed: 01/01/2023]
Affiliation(s)
- Rainer Mittermayr
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology; Austrian Cluster for Tissue Regeneration; Vienna Austria
| | - Ludwik Branski
- Shriner's Hospital for Children; University of Texas Medical Branch; Galveston TX USA
| | - Martina Moritz
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology; Austrian Cluster for Tissue Regeneration; Vienna Austria
| | - Marc G. Jeschke
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Department of Surgery, Division of Plastic Surgery; University of Toronto; Canada
| | - David N. Herndon
- Shriner's Hospital for Children; University of Texas Medical Branch; Galveston TX USA
| | - Daniel Traber
- Shriner's Hospital for Children; University of Texas Medical Branch; Galveston TX USA
| | | | - Jörg Gampfer
- Baxter Innovations GmbH, Division of Biosurgery; Vienna Austria
| | - Andreas Goppelt
- Baxter Innovations GmbH, Division of Biosurgery; Vienna Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology; Austrian Cluster for Tissue Regeneration; Vienna Austria
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Kaltalioglu K, Coskun-Cevher S, Tugcu-Demiroz F, Celebi N. PDGF supplementation alters oxidative events in wound healing process: a time course study. Arch Dermatol Res 2013; 305:415-22. [DOI: 10.1007/s00403-013-1326-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 02/04/2013] [Accepted: 02/08/2013] [Indexed: 12/19/2022]
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Abrão J, Fernandes CR, White PF, Shimano AC, Okubo R, Lima GB, Bachur JA, Garcia SB. Effect of local anaesthetic infiltration with bupivacaine and ropivacaine on wound healing: a placebo-controlled study. Int Wound J 2012; 11:379-85. [PMID: 23095130 DOI: 10.1111/j.1742-481x.2012.01101.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Infiltration of surgical wounds with long-acting local anaesthetics (LA) is used to reduce postoperative incisional pain. We hypothesised that infiltration with LA interferes with wound healing in rats. Seventy-two rats were allocated into nine groups. After intraperitoneal anaesthesia, the interscapular dorsal region was infiltrated with equivolumes of saline, 0·5% bupivacaine or ropivacaine, in a randomised double-blind fashion. A standardised incision was performed in the infiltrated area and sutured closed. The rats were euthanised on the 3rd or 14th day after the operation and tissue from the incision site was subjected to histochemical analyses and mechanical testing (MT). Compared with the control group, bupivacaine displayed a significant increase in the macrophage number on day 3 (+63% versus +27% for ropivacaine). The transforming growth factor β-1 expression had a significant increase in the LA (versus saline) groups, +63% in ropivacaine group and +115% in bupivacaine group on day 3 (P < 0·05). The collagen fibres as measured by dyed area were significantly higher in the bupivacaine group on day 3 (+56%, P < 0·01 versus +15% for ropivacaine). CD34 was reduced in bupivacaine group (-51%, P < 0·05 versus +3% for ropivacaine). On day 14, no statistical differences were observed in either LA group (versus saline) with respect to histopathologic or inflammatory mediators. MT on day 14 showed no differences between the LA and saline groups. The LA-induced increases in histological markers did not extend beyond the third day, suggesting that wound infiltration with long-acting LA does not impair the wound healing process in rats.
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Affiliation(s)
- João Abrão
- Department of Biomechanics, Medicine and Rehabilitation, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, BrazilDepartment of Pathology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, BrazilDepartment of Anesthesiology, Cedars-Sinai Medical Center, Los Angeles, CA, USA, Instituto Ortopédico, Rizzoli, University of Bologna, ItalyDepartment of Radiology, Faculty of Medicine, University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
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Abstract
It is well established that tissue repair depends on stem cells and that chronic wounds predispose to tumour formation. However, the association between stem cells, wound healing and cancer is poorly understood. Lineage tracing has now shown how stem cells are mobilized to repair skin wounds and how they contribute to skin tumour development. The signalling pathways, including WNT and Hedgehog, that control stem cell behaviour during wound healing are also implicated in tumour formation. Furthermore, tumorigenesis and wound repair both depend on communication between epithelial cells, mesenchymal cells and bone marrow-derived cells. These studies suggest ways to harness stem cells for wound repair while minimizing cancer risk.
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Affiliation(s)
- Esther N Arwert
- Cancer Research UK Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge CB2 ORE, UK
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Preparation, characterization and biological properties of Gellan gum films with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide cross-linker. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.06.019] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Park CJ, Clark SG, Lichtensteiger CA, Jamison RD, Johnson AJW. Accelerated wound closure of pressure ulcers in aged mice by chitosan scaffolds with and without bFGF. Acta Biomater 2009; 5:1926-36. [PMID: 19342320 DOI: 10.1016/j.actbio.2009.03.002] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2009] [Revised: 02/21/2009] [Accepted: 03/02/2009] [Indexed: 11/18/2022]
Abstract
Pressure ulcers are a significant healthcare concern, especially for elderly populations. Our work served to ameliorate the chronicity of these ulcers by addressing ischemia-reperfusion injury mediated by neutrophils and the concomitant loss of vasculature in these wounds. To this end, chitosan scaffolds loaded with basic fibroblast growth factor (bFGF) contained in gelatin microparticles were developed and tested for clinical relevance in an aged mouse model. Pressure ulcers were induced in aged mice, and efficacy of treatment was assessed. On days 3 and 7, both chitosan and chitosan-bFGF scaffolds significantly accelerated wound closure compared to gauze control. By day 10, all wounds achieved similar closure. Delivery and angiogenic function of bFGF was verified through ELISA and histology. Elevated neutrophil levels were observed in chitosan and chitosan-bFGF groups. Since neutrophil elastase contributes to the proteolytic environments of pressure ulcers, the effect of chitosan on elastase was assessed. In vitro, chitosan inhibited elastase activity. In vivo, elastase protein levels in wounds were reduced with chitosan-bFGF scaffolds by day 10. These results suggest that chitosan is an effective material for growth factor delivery and can help to heal chronic ulcers. Collectively, our data show that chitosan-bFGF scaffolds are effective in accelerating wound closure of pressure ulcers in aged animals.
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Affiliation(s)
- Chan J Park
- Department of Materials Science & Engineering, University of Illinois at Urbana-Champaign, 61801, USA
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Gope ML, Gope R. Tyrosine phosphorylation of EGF-R and PDGF-R proteins during acute cutaneous wound healing process in mice. Wound Repair Regen 2009; 17:71-9. [PMID: 19152653 DOI: 10.1111/j.1524-475x.2008.00443.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The effect of topical application of epidermal growth factor (EGF) and platelet-derived growth factors (PDGFs) on the levels of EGF-R and PDGF-R proteins and their tyrosine phosphorylation were analyzed during an acute cutaneous wound healing process in mice. The growth factor-treated wounds had optimum levels of receptor proteins as early as day 1 compared with the control, which had only a basal level. Analysis of the tyrosine phosphorylation of the receptor proteins in control and growth factor-treated wounds indicated that they were phosphorylated until day 5 after wounding. Only the mature forms of alpha-PDGF-R and beta-PDGF-R proteins were phosphorylated and not their precursors. Our results show that rapid attainment of maximum levels of growth factor receptor proteins and their tyrosine phosphorylation as early as day 1 and the maintenance of the same until day 3 appear to aid faster and better wound healing. Topical application of PDGF-AA alone did not facilitate the wound healing process and it also antagonized the EGF-medicated wound healing when applied premixed with EGF or within 30 minutes after EGF application. Under these conditions, the receptor proteins were not phosphorylated. Thus, an increased and sustained level of EGF-R and PDGF-R proteins and their tyrosine phosphorylation appear to accelerate the wound healing process.
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Affiliation(s)
- Mohan L Gope
- Department of Biotechnology, City College, Bangalore, India
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Wang X, Chen S, Jin H, Hu R. Differential analyses of angiogenesis and expression of growth factors in micro- and macrovascular endothelial cells of type 2 diabetic rats. Life Sci 2009; 84:240-9. [DOI: 10.1016/j.lfs.2008.12.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2008] [Revised: 10/25/2008] [Accepted: 12/06/2008] [Indexed: 01/01/2023]
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